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  #1  
Old 03-21-2011, 05:37 PM
Bernard Bernard is offline
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Default Fuel pump shut off

Just wondering if anyone has had their Ranger just shut down while driving. Mine has done it a few times in the last few months. Turns out its the fuel pump shut off switch located under the glove box. Just push the switch in and it fires right back up again and is fine. The question is, why is it doing it in the first place. It's an 05 with 33,000 mi. on it. Could be dangerous in the wrong situation. So far it has not been, thank God.
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Old 03-21-2011, 05:43 PM
mickblock mickblock is offline
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Default Re: Fuel pump shut off

If yours keeps doing it ... damn I was going to say replace it. But that might be like replacing a circuit breaker to fix a short.

Anyone know what sensor trips this switch or how this sytrem works? system I mean?
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Old 03-22-2011, 12:59 AM
87bullsnkranger 87bullsnkranger is offline
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Talking Re: Fuel pump shut off

It's called inertia saftey switch in case of a wreck or rollover the switch will trip and shutoff the positive electrical wire to the fuel pump so the pump will stop pumping fuel thru the pressurized fuel lines hopefully preventing a gas fire.All it's plugged into is that main electrical wire if you have your owners manual it will tell you how to properly reset the switch and that should fix your problem only other thing is check the plug going into it and the two wires make sure it's in good shape not burned or,melted or cracked, i had to redo the plug and wires due to age and getting hot n melted which caused the pickup not to run.
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Old 03-22-2011, 04:04 PM
mickblock mickblock is offline
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Default Re: Fuel pump shut off

Yeah. All that. I mean what makes it work and what can cause it to fail, the component itself or something that can send it a false signal?
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Old 03-22-2011, 04:21 PM
FireRanger FireRanger is offline
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Default Re: Fuel pump shut off

No signals or anything high tech. It's just an inertia switch. It is a moving part, made of plastic. There is a ball and a magnet. When ball breaks free of the magnet, it trips the switch. They fail once in a while. Just replace it, problem solved.
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Old 03-22-2011, 05:05 PM
Bernard Bernard is offline
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Default Re: Fuel pump shut off

I have reset it according to the manual but looks like I'll have to get it replaced. I think I may still be under a warranty so I'll let them do it. The truck only has 33,000 on it so it should not be doing anything like that yet, but it is still 6 years old. I will check the wires to see what the deal is just to be sure. Thanks.
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Old 03-22-2011, 05:29 PM
FireRanger FireRanger is offline
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Default Re: Fuel pump shut off

Warranty at 6yrs and 33k?
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How to: Aux light wiring, relays, & fuses
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Old 03-22-2011, 06:38 PM
HazardousRanger HazardousRanger is offline
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Default Re: Fuel pump shut off

is the fuel pump mounted to the wall? that was my issue when i was offroading...found out the hard way that it wasnt mounted...mounted it on the wall and never had any issues again
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Old 03-23-2011, 03:13 AM
Bernard Bernard is offline
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Default Re: Fuel pump shut off

Bought it used w/ 100,000 mi. warranty w/ an extra one for electrical probs. or whatever so it should still have it. The deal is you have to get it serviced at that dealer to keep the warranty.
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Old 03-24-2011, 12:49 AM
87bullsnkranger 87bullsnkranger is offline
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Talking Re: Fuel pump shut off

sounds the best thing to do wile you have warranty cause otherwise you have to go to a junkyard to get anotherone unless you get lucky with an oddball parts place like carquest.
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1987 black custom xlt,ext. cab 4x4,military-surplus 2.9L, stock 3"lifted;5 speed auto trans w/ manual 4x4,borg-Warner-turbo transfer case,grinds out progressive aluminum mags w/goodyear wranglers; keyed entry alarm,duel 280w interface deckw/usb n bluetooth,jvc6x8s rear,jvc4"160wfront,crome bed side rails,tuff liner bed liner also blacked out headlights,limo black window tint. called the BULLSNAKE cuz its the best small-n-toughest 4x4 ford built!!
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